President Obama delivers the commencement speech during graduation ceremonies at the United States Military Academy at West Point on May 22. During the speech, the president touched on key themes of his new national security goals — such as multilateralism and global outreach — to be unveiled Thursday. Michael Nagle/Getty Images hide caption

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On The Move: When Supreme Court nominee Elena Kagan visited senators last week, she was joined by President Obama's assistant for legislative affairs, Phil Schiliro (left). On the same day, White House staffers delivered Kagan's responses to questions from the Senate Judiciary Committee. AP hide caption

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"Every American affected by this spill should know this: Your government will do whatever it takes, as long as it takes, to stop this crisis," President Obama told reporters last week in Venice, La. Charles Dharapak/AP hide caption

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A private security camera in New York City's Times Square. Police Commissioner Ray Kelly argues that surveillance cameras are useful -- and he wants more of them. Mario Tama/Getty Images hide caption

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George Washington leads his troops across the Delaware River in 1776 during the Revolutionary War in this painting by Emanuel Leutze. AP hide caption

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In Prague on Thursday, President Obama and Russian President Dmitry Medvedev signed an arms reduction treaty. But fears of an attack by a nuclear-armed superpower have given way to concerns about a nuclear-armed terrorist. Yuri Kadobnov/AFP/Getty Images hide caption

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Current law punishes people who possess crack, which is much cheaper than powder, 100 times more heavily than people who possess powder cocaine. AP hide caption

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